Four people were killed and seven others were injured Wednesday in and near Rockford‚ Illinois‚ in what the city’s mayor called a “random and senseless act of violence.” Some of the victims‚ including a woman who fled a home invasion in Winnebago County and a man who tried to help her‚ were stabbed‚ officials said. Police took a 22-year-old man into custody and were not looking for anyone else involved in the violence‚ which occurred at "multiple scenes" in Rockford and an area of the...